Torsades de pointes can be treated with magnesium

Which one of the following would most likely cause a patient to have a simple episode of syncope (fainting)?

A) Increase in systemic vascular resistance B) Parasympathetic stimulation C) Activation of the sympathetic nervous system D) Sudden release of norepinephrine

ICD-10-CM ________ distinguish between essential, benign, and malignant hypertension

A) does B) does not